Pennington, C. I. (1977). Mortality, public health and medical improvements in Glasgow, 1855-1911.
Lua i Stíl Chicago (17ú heag.)Pennington, Carolyn Ingram. Mortality, Public Health and Medical Improvements in Glasgow, 1855-1911. 1977.
Lua MLA (8ú heag.)Pennington, Carolyn Ingram. Mortality, Public Health and Medical Improvements in Glasgow, 1855-1911. 1977.
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